wetness indicator

Certain diapers have a wetness indicator that informs you when the diaper is wet. A wetness indicator takes the form of one or two lines down the center of a diaper. The typical default color (clean color) is yellow, and when wetness is detected, the color changes to blue (used color).

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post #5190160
↑22♥32C0Q
post #5172799
↑107♥246C1E
post #5172297
↑149♥263C2Q
post #5166591
↑47♥110C2S